Rubbing mechanism.



P.. H. FRIEL,DECD.' Hin. rmELLADmNlsm/wmx.

Rume MECHANISM. APPucATmN, FILED Nov. 1,5. me.

- 19366,@33, Patented June 10, 1919.

, 2 SHEETS-SHEET l.

P. H. FRIEL, DECD. n. n. ram, ADMINISTRAIRIX. RUBBING MECHANISM'.

APPLICAHN FILED NOV. l5. 1915- 1 ,$306,533. Patented June 10, 1919.

2 SHEETS-SHEET 2. 4f

l UNITED STATES PATENT oEEIcE.

PATRICK I-I. FRIEL, OF KENOSHA, WISCONSIN; HATTIE D. FRIED, ADMINISTRATRIX OF SAID PATRICK H. FRIEL, DECEASED, ASSIGNOR TO SIMMONS COMPANY, OF KENOSHA, WISCONSIN, A CORPORATION OF DELAWARE.

RUBBING MECHANISM.

Application filed November 15, 1916.v Serial No. 131,552.

v'citizen of the United States, residing at Kenosha, in the county of vKenosha and State of lVisconsin, have invented a certain new and useful Improvement in Rubbing Mechanism, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification. y i

My invention relates to rubbing or grinding devices and has for itsobject the rovision of an improved rubbing or grinding structure that is inclusive of an annular rub- 'bing element whose inner annular or circular surface is the rubbing surface. My invention also has for its object the provision of an improved rubbing machine or grinding', machine for rubbing or. grinding tubing,i this invention being of particular service in grinding down the rough exterior portions of tube seams or joints, particularly when such joints or seams are welded.

Asv a further feature of my invention I employ adjusting means and supporting devices to adapt the device of my invention to varying work.

My invention also resides' in an im roved dust guard to prevent the dust from nding access to operatives.

The foregoing and other features of' my invention will be fully ence to the accompanying drawings showing the preferred embodimei t vthereof and in which- `igure 1 is a view in elevation with associate parts in sec-tion; Eig. 2 is a view on line 9.-2 of Fig.` 1; Fig. 3 is an enlarged end view of a part of the structure; Fig. 4 is a longitudinal sectional elevation; and Fig. 5 is a front View.

Like parts are indicated by similar characters of reference throughout the different figures.

The 'machine illustrated is one which is adapted for the grinding of seams in rolled tubing, but the invention is not to be limited to such embodiment. In the embodiment of the invention illustrated there is a hollow1 shaft 1 mounted to rotate in a journal box 2'. This journal box is supperted upon springs 3 that exert upward pressure upon the journal box, the journal box being depressed or elevated into any selected position by means desirably made of .two

explained by referof the adjusting boltll passing through the top of the frame 5 lthat houses the journal box and acting Yin cooperation with the Specification of Letters Patent. Patented June 10, 1919. y

springs .3, the housing 5 and journal box- 2 havin where y the journal box may be movedy up and down without being moved longitudinally of the axis of rotation of the shaft 1 groove and slot engagement at 6.-"

whose axis of rotation is thus adjustable,

Where the machine is to be used for grindv ing tubing that issues rfrom a tube making machine, the shaft 1 is hollow and is located close to the tube making machine so that the pipe 7 issuing from the tube making machine will pass through the bore of the shaft 1. llVhether hollow, for the purpose of grinding or rubbing pipe, or solid, the shaft 1v carries an annular enlargement, such as a collar 8, at its forward end. Within this collar there is disposed a rubbing y,ring 9 whose rubbing or grinding surface is atv its inner circle which is of smaller diameter than the bore of the sha-ft 1 in order that work passed through the shaft may properly .I

reach lthe rirbbingsurface of the ring. This ring is co-axial With the shaft 1 and has its axis adjustable with the axis of said shaft by means ofthe elements 3 and 4. Where the rubbing ring 9 is a grindingring it is inner cylindrical or annular surface of the rubbing ring and the axis of the shaft 1 are coincident. Any suitable means may be employcd for impartingrotary motion to the shaft, such as a belt driven pulley 11 keyed upon the shaft at 1Q. As illustrated, the machine is adapted to the grinding of the welded seam 13 in a tube or pipe 14 formed in a tube makingv machine. The pipe 7 issues from the tube making machine without turning and with its seam 13 presented to the top portionof the rubbing element 9a that has grinding action upon the exterior of the seam to make it smooth. Other objects, howarts, the inner part s ever, may ground er rubbed'bythe inner cylindricalor annular surface of the rubbing wheel; The grinding or" rubbing wheel may be readily adapted to its work by the adjustment of the bolt 4 acting incoperation with I employ a dust hood orguard which incloses at least the top'and sides'of the chuck 8-10 andthepipe, 7 issuing there-I from.l Thel dust resulting from 'thejg'rinding will fall downwardly into'or throughthe hood andl will'not issue through the forward end thereof, particularly if'the pipe 7 is caused to issue through'a packing ring or element lthat is carrieduponthe front end of the hood to guard against the emission o'f dust-between the Vpipe 7 and the surl roundingvfront part vof the hood. The top of the hood may be provided with a trans.

parent closure 17 of isinglass or other transparent material 'through which the effect of grinding or rubbingupon the work may be observed. If the'dust hood is open atthe bottom asA indicated at 18 so that the dust.

may readily fall therethrough, I desirably provide a dust pan 19 below the opening 18 to catch the dust. The opening 18 is desii-,

ably in the form of a slot which preferably` extends from the housing ,to the forward end of the hood 15,the. dust pan 19 being of similar length.

u Among other advantages of my invention is. the fact that by means, of the adjusting mechanism 3 4, the grinding ring may be adjusted to compensate for wear until the metal supporting body 91J therefor is nearly reached. Another advantage which should A be obvious is the fact'that the inner curved rubbing or grinding surface of the rubbing or grinding ring conforms suiiiciently to the curvature of the .tube being ground as to leave no 'flat spots upon the tube. When a 3 tube is groundupon the outer periphery ofy a grindingwheel, as hitherto, 'iat spots are. Y' 45 fuequently formed upon the tube.

` In thev embodiment Iof the invention illustrated I have also provided upon the rear' Iend of the shaft l a grinding or rubbing ar' rangement which is similar to that shown at the front end 0f the shaft. Parts at the rearend of the shaft which are similar to parts at'the front end of the shaft in function and construction are given similar characters of reference with added Iexponent marks.

The rubbing ring 9a 'at the rear 'end of the shaft has its inner and rubbing circle of lit'v preferably sli htlylarger diameter than ,the

inner and ru bing circle of the ring 9. When these rubbing rings are grinding rings the ring 9a Vwill operate to take ofi' the rougher or burfportions uponthe object being ground, the grinding ring'9 at thefront end of the shaft smoothing the surrear end of the shaft.

face roughly ground by the ring 9a at theetv VWhile I have herein shown and particul' larlydescribed the preferred embodiment of my invention 1 do not wish to be limited to ring whose inner annular surface is the grinding surface and a hood surrounding thering for-confinin I having a; packing devlce at its forward end through' which .the work operated uponk passes and Iwhich serves to prevent dust from the dust, said hood leaving the hood at the forward end thereof.

It witness whereof, I hereunto subscribe myname this 8th dayA of November A. D5, 1916.

Witnesses:

JESSE RUTHERFORD, BENJ'. M. D. DIEMAR.

PATRICK rerun 'A 

